Invitation Email is resent as a Reminder after invalidating pending email invites
Priority LOW 23CWE-664Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
Mattermost 6.4.x and earlier fails to properly invalidate pending email invitations when the action is performed from the system console, which allows accidentally invited users to join the workspace and access information from the public teams and channels.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00843 58th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Mattermost (Mattermost): 6.5.0github.com/mattermost/mattermost-server/v6 (Go): 6.5.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Mattermost | Mattermost | before 6.5.0 | 6.5.0 | Patch available | CNA |
| — | github.com/mattermost/mattermost-server/v6 (Go) | before 6.5.0 | 6.5.0 | Patch available | GHSA-fxwj-v664-wv5g |
- Mattermost VendorMattermost Affected before 6.5.0 Fixed in 6.5.0 Patch available CNA
- github.com/mattermost/mattermost-server/v6 (Go) Vendor— Affected before 6.5.0 Fixed in 6.5.0 Patch available GHSA-fxwj-v664-wv5g
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | before 6.5.0 | Vulnerable | Mattermost |
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* Versions before 6.5.0 Vulnerable ·Mattermost
Remediation
- Fix · CNA Mattermost (Mattermost) Fixed in 6.5.0
- Fix · GHSA-fxwj-v664-wv5g github.com/mattermost/mattermost-server/v6 (Go) Fixed in 6.5.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2022-1385
- 2026-10-03 Alias added: GHSA-fxwj-v664-wv5g
References
More Mattermost Server vulnerabilities
- TI-2025-18933 Arbitrary file read in Mattermost Boards via import & export board archive CVSS 3.1CRITICAL 9.9
- TI-2025-04465 Path Traversal Leading to RCE by Any Authenticated Mattermost User CVSS 3.1CRITICAL 9.9
- TI-2017-14068 An issue was discovered in Mattermost Server before 3.6.2. CVSS 3.1CRITICAL 9.8
- TI-2017-14060 An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. CVSS 3.1CRITICAL 9.8
- TI-2017-14048 An issue was discovered in Mattermost Server before 4.1.0, 4.0.4, and 3.10.3. CVSS 3.1CRITICAL 9.8
- TI-2025-14360 Arbitrary file read via block duplication in Mattermost Boards CVSS 3.1CRITICAL 9.9
Sources
- CVE-2022-1385 · CVE Program
- CVE-2022-1385 · NVD
- FIRST EPSS
- GHSA-fxwj-v664-wv5g · GitHub Advisory Database · CC BY 4.0
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